"unbend" in the verb sense
1. straighten, unbend
straighten up or out make straight
2. unbend
unfasten, as a sail, from a spar or a stay
3. unbend
free from flexure
"unbend a bow"
4. relax, unbend
make less taut
"relax the tension on the rope"
5. relax, loosen up, unbend, unwind, decompress, slow down
become less tense, rest, or take one's ease
"He relaxed in the hot tub"
"Let's all relax after a hard day's work"
6. unbend
release from mental strain, tension, or formality
"unbend the mind from absorbing too much information"
Source: WordNet® (An amazing lexical database of English)
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